buceheit



` (No Model.)

C. J. BUCHE-EIT 8v T. L. POPP.

TYPE WRITING MACHINE.

Patented Aug. 31, 1886.

CHARLES J. BUOHHEIT AND THEODORE L. TOPP, OF BUFFALO, N. Y.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 348,511, dated August 3l, 1886.

Application filed March 29, 1896.

To all whom, it may concern,.-

Be it known that we, Ciiiiunns J. BUeir- Hnrr and Tiinonoizn L. Pour, both ofthe city of Buffalo, in the county of Erie and State of New York, have invented new and useful Iniproveinents inllype-Vriters, of" which the followingis a specification.

rlhis invention relates more particularly to a device or attachment to be applied to typewriting machines for indicating when the bot tom of the page or sheet of' paper which is being printed upon approaches the printing line or point at which it receives the iinpression so closely as to make it\n essary to remove the sheet and introduce a ne\`v\Qne.

The object of our invention is to con truct a simple alarm device,which is controller lav the ni-oveiiient ofthe sheet of paper under" the platen or roller, and wliicliis automatic ally actuated, and gives an audible alarm when the bottom of the page or sheet has arrived at the point where another line cannot be properly printed on the sheet.

The invention consists to that end of theiinprovements, which will be hereinafter fully set forth, and pointed out in the claims.

In the accompanying drawings, Figure l. is a fragmentary sectional elevation of the upper portion of a type-writer provided with our improvement. Fig. 2 is a vertical cross-sec tion of the carriage-frame, platen,and taperollers with the sheet of paper in position. Fig. 3 is a bottom plan view of the same with the sheetof paper removed. Fig. 4t isa seetional top plan view of our improvement. Fig. 5 is a sectionalV elevation of' the device slightly modified. Fig. (3 is a fragmentary sectional elevation showing a modified construction of our improvement. Fig. 7 is a fragmentary sectional elevation showing another modified construction of our improvement.

Like letters of reference refer to like parts in the several figures.

A represents the movable carriage-frame of a type-writing machine, and B represents the platen or roller, which is journaled in bearings b in the frame A, and provided near one of its ends with an annular groove or reccss,B.

(l represents a bar or plate, secured at oiie end,below the frame A, to a suspended carrying-block, c, and which supports at its oppo- Scrial No. 196.084. (No model.)

site end the scale-barC. The block cis se- ,cured to a rod, c, which is supported in the frame A.

D 1) represent pulleys or rollers mounted, respectively, on a shalt, d, and the rod c', and which carry an endless rubber tape, d, which latter serves to hold the sheet of paper B against the roller or platen B in the usual manner.

Alil represents a clamp or jaw arranged underneath the frame A, at one end of the platen B, and secured to the bar() by means of a setscrew, lf' desired, the clamp lil may be secured to the frame A, as shown in Fig. G.

F represents a curved or bent arm, pivoted atfto an arm, j", which latter is formed with or secu red to the clamp E.

to the arinf, and G the haiiimer,which is secured to the outer end of the arm F, andadapted to strike against the gong or bell G and sound an alarm.

H represents an u pwardl y-proj eetiii g finger, formed at the inner end of the arm F, and bearing against the under side of the sheet of paper B2, opposite the groove or recess B of the platen B.

The groove or recess B of' the platen B is arranged in line with the finger H, so as to permit the latter to enter the same when released by the sheet of paper. The weight of the hammer G is sufficient to hold the finger H against the under side of the sheet, and when the bottoni of the sheet has been reached the finger H will be released and enter the `groove fl, and cause the hammer G to strike the bell and sound an alarm. If desired. a coiled or other suitable spi'iiig,1.,may be interposed betweeii the arm f and the hammer arm, as shown in Fig. 5, to insure a more perfeet contact between the finger iii and the sheet of paper, and also to assist the hammer G to elevate the finger l-I into the recess B when the end ofthe sheet of paper has been reached, whereby a louder and more distinct alarm is rendered.

The feelingfinger II of the arm F is provided on its front side with an inclined 'nose or guide t'. rlhe nose i' projects below the sui`` face of the platen or roller B when the finger H has enteredthe groove or recess B', so that when a new sheet of paper is being inn IOO trodueed between the platen and tapes the top edge of thepaper will ride over the incline or nose i and withdraw the finger H from the groove B. If preferred, the finger H may be provided with a small roller, J, instead of the nose c', whereby the same result is obtained.

It is obvious that the groove or recess B may be formed at one end of the platen B, as clearly shown in Fig. 6, in which ease the edge of the sheet of paper is allowed to project sufficiently over the end of the platen B to permit the finger H to bear against the same.

Our improved device is equally adapted to stationary platens,in which case it is only necessary to form a notch or recess in the platen opposite the point of contact of the feelingfinger H,to permit the latter to enter the same when released from the end of the sheet of paper.

In the construction shown in Fig. 7 the arm F is pivoted to a cross-bar, 7c, secured to the frame in any suitable manner, and bears with its lower free'end upon the sheet of paper, so that when the end of the same has been reached the arm is permitted to fall and render an alarm.

XVe claim as our invention- 1. The combination, with the platen of a type-writer, of a movable finger which is supported by the paper and an alarm which is sounded by the movement of the finger when the latter is released by the paper, substantially as set forth,

2. rllhe combination, with the platen of a type-writer having a groove or depression, of a movable finger having its end arranged in line with said groove or depression, and supported by the paper extending over thesame, and an alarm which is sounded when the mov- 'able finger enters said groove or depression upon being released by the paper, substan-l tiallyas set forth.

3. In a type-writer, the combination, with the platen B, of a clamp, E, carrying a bell, G, and an arm, F, pivcted to the clamp and provided at one end with a hammer, G', and at its opposite end with a finger, H, adapted to rest on the paper, substantially as set forth.

4. In a type-writer, the combination, with the recessed platen B, of the bell G and a pivoted hammer-arm provided with a iinger, H, having a guide, 17, whereby the inger is removed :from the recess of the platen upon applying the paper to the platen, substantially as set forth.

Witness our hands this 20th day of March, 1886.

CHAS. J. BUCHHEIT. THEODORE L. POPP.

Vitnesses:

OSCAR SCHAUB, JNO. J. BONNER, 

